Anorlunda,
I completely agree a power quality test needs to be conducted by a third party to have sufficient documentation to present. I still will look into some VR tuning which may or may not help stabilize the genset.
I don't know how this comes into play but there's no doubt the frequency...
the problem has been present for years, super green horn operators had no idea of the genset operating conditions, and mostly thought it was fuel related issues causing the genset instability which its definitely not.
Single step transformer for both gensets- 3750kva. The Caterpiller Digital Voltage Regulator does have some droop settings but I have to do some research on the specifics of each droop settings. Here is pic of the VR settings on one of the units, this might shed some light
wow Jim that was alot, I always had a hunch that the digital voltage regulator could use some finer tuning to compliment the bus. Good suggestion to find a guru for particular equipment and VR.
Rodney
Magoo,
Changing the PF increases reactive power and moving that setting will increase the VARs alot, should I be concerned with Stator Winding temps doing so? We do have winding temp probes so I will monitor closely. So the distribution of reactive power may help stabilize some of these...
Magoo,
-Yes the frequency was a typo.
-The voltage increase is viewed on the 4.16kv side -switchgear and generator protective relay- and the voltage increase is viewed phase to phase.
-Ok I can def find out what the nominal line voltage is for a reference for this area and expected voltage with...
Lil background that may support the best answer to my question.
I'm a plant manager for a small landfill gas power generation facility 3.6MW, 2ea RICE CAT 3520'S, which are paralleled to the grid. I believe my site is experiencing utility power quality issues that are effecting genset...